Science Olympiad

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As part of the Science Olympiad we were assigned to build a bridge. My first thoughts were actually pretty negative because I knew that I was not the best buildr ( from experience from last year). We were given a general design to build off of, or we were given the option to desing a new one. I actually debated for a long time as to what I should do. I ultimately decided to take the risk to design a new bridge, hoping that maybe it could withstand more load (plus we were told that we would be rewarded points for creativity). The night we were giiven this project, I automatically started researching the optimum design for my bridge. I knew that the load would bee applied to the center of the bridge, so therefore, I had to research a bridge …show more content…

I’d never really built a bridge that was supposed to be tested and I definitely lacked experience at building in general. Also, I thought that even though I had a really stable desing, m y execution might’ve not been able to make the bridge hold its own. So I eventually scrapped the idea of making an arch. The next best thing was the Warren Truss bridge. The Warren Truss bridge is a type of bridge design that consists of equilateral triangle trusses. Even though it was really simple, it would be very good for a centered load. The design commonly has a centered vertical piece that prevents the bridge from buckling. When weight is applied to the bridge, the vertical pieces are in tension (as well as the horizontal base piece and inner diagonals) and the diagonals are in compression. While reading about the Warren Truss, I found the Pratt Truss as well. The Pratt Truss mainly used right triangles and worked the same way except it would be better for longer spans. I decided to combine both designs to create my

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